Conjunction of the Moon and Saturn

Dominic Ford, Editor
From the Conjunctions feed


The Moon and Saturn will share the same right ascension, with the Moon passing 6°54' to the north of Saturn. The Moon will be 9 days old.

At around the same time, the two objects will also make a close approach, technically called an appulse.

From Fairfield , the pair will be visible in the evening sky, becoming accessible around 17:03 (EST), 44° above your south-eastern horizon, as dusk fades to darkness. They will then reach their highest point in the sky at 18:34, 49° above your southern horizon. They will continue to be observable until around 23:37, when they sink below 11° above your western horizon.

The Moon will be at mag -12.2 in the constellation Pisces, and Saturn at mag 0.6 in the neighbouring constellation of Cetus.

The pair will be too widely separated to fit within the field of view of a telescope or pair of binoculars, but will be visible to the naked eye.

A graph of the angular separation between the Moon and Saturn around the time of closest approach is available here.

The positions of the two objects at the moment of conjunction will be as follows:

Object Right Ascension Declination Constellation Magnitude Angular Size
The Moon 00h31m50s 7°36'N Pisces -12.2 31'11"5
Saturn 00h31m50s 0°42'N Cetus 0.6 18"1

The coordinates above are given in J2000.0. The pair will be at an angular separation of 104° from the Sun, which is in Ophiuchus at this time of year.

The sky on 18 Dec 2026

The sky on 18 December 2026
Sunrise
07:10
Sunset
16:25
Twilight ends
18:05
Twilight begins
05:31


Waxing Gibbous

67%

9 days old

Planets
Rise Culm. Set
Mercury 06:39 11:14 15:48
Venus 03:21 08:40 14:00
Moon 12:21 19:02 01:55
Mars 22:00 04:44 11:28
Jupiter 21:10 04:01 10:53
Saturn 12:29 18:34 00:40
All times shown in EST.

Source

The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).

This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.

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23 Dec 2027  –  Saturn ends retrograde motion

Image credit

The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.

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